How to Enroll in Medicare Advantage

We offer Trillium Advantage Pioneer Rx (PPO) for people eligible for Medicare, Trillium Advantage Dual (HMO SNP) for people who qualify for both Medicare and Medicaid and Trillium Advantage TLC ISNP (HMO SNP) for people who are eligible for Medicare and are living in a nursing home or long-term care facility. We also offer Trillium Advantage TLC Community ISNP (HMO SNP) for people receiving community-based home care services. 

To enroll in a Medicare Advantage Plan from Trillium Advantage, choose one of the following: 

  • Enroll Online
  • Call one of our licensed sales and enrollment representatives at 1-877-826-5519. 
  • Download this application, fill it out and mail it to us:

Enrollment Application Instructions

Step 1: Please fill out all 8 pages of the application.

Step 2: Check either YES or NO box for items 1 through 5 on page 3.

Step 3: Enter your Primary Care Physician's name.

Step 4: Sign and date the enrollment application for Trillium Advantage on page 5.

Step 5: Check any box on page 7 that applies to you.

Step 6: Fax or mail the original copy to:

Medicare Enrollment Department
PO Box 2020
Farmington, MO 63640-2011


Fax: 1-844-222-3180

Medicare beneficiaries may also enroll in Trillium Advantage through the CMS Medicare Online Enrollment Center located at

If you have any questions regarding this application, please contact one of our licensed sales representatives at 1-877-826-5519 (TTY: 711). If you would rather speak to a member services representative, please call 1-844-867-1156 (TTY: 711).

Member Services 1-844-867-1156 (TTY: 711). From October 1 to February 14, you can call us 7 days a week from 8 a.m. to 8 p.m. From February 15 to September 30, you can call us Monday through Friday from 8 a.m. to 8 p.m On weekends and holidays, an automated system will handle your call.

El horario de atención: del 1 de octubre al 14 de febrero, puede llamarnos 7 días a la semana de 8 AM a 8 PM. Del 15 de febrero al 30 de septiembre, puede llamarnos de lunes a viernes entre 8 AM y 8 PM

Trillium Advantage is contracted with Medicare for an HMO SNP plan, and with the Oregon Medicaid program. Enrollment in Trillium Advantage depends on contract renewal.

Trillium Advantage tiene un contrato con Medicare para un plan HMO SNP y con el programa Medicaid de Oregon. La inscripción en Bridgeway Health Solutions depende de la renovación del contrato.

Last Updated: 02/08/2017